Magneto-mounting.



Avv. s. LEE. MAGHBTO MOUNTING. AP-PLIOATIOI FILED 10V. 24. 1911.

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@www 'YWMVS 010/' www M @LMO Patented Nov. 5, 1912.

W. S. LEB.

MAGNETO MOUNTING.

APPLICATION FILED Nov.24.1911.

1,043,116. Patented N0v.5,1912.

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WILLIAM S. LEE, OF DETROIT, LIICHIGAN, ASSIGNOR, BY MESNE ASSIGNMENTS',TO BRIGGS-DETROITER COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OFMICHIGAN.v

MAGNETO-MOUNTING,

Specification of Letters Patent.

.Patented Nov. 5. 1912.

To all whom 'it may concern;

13e it known that I,'WILLLAM S. LEE,'a citizen of the United States, anda resident of Detroit, in the county of Wayne and State of Michigan,have invented a new and use'- ful Magneto-Mounting, of which thefollowing isa specification.

This invention relates to means for supporting magnetos, to means forproperly connecting the driving mechanism to, the armature shaft of themagneto, and to means for properly adjusting said driving mechanismbefore it is locked to the shaft.

At present, much time is lost in properly connecting magnetos to lfhecam-shafts or crank-shafts of explosion engines, because there is noproper system for first positioning the gear connected to the armatureshaft of the magneto. lIt is now A necessary to make many adjustmentsand experiments before the proper position is attained. The presentconstruction is designed to obviate these experiments by furnishingmeans whereby the position of the armature shaft can be absolutelydetermined so that the magneto can be secured in proper positionwithoutany diiliculty.

In the accompanying drawings, Figure 1 is an elevation' of an enginewith the armature in position. line 2-2 of Fig. 1. Fig. 3 is anelevation of a magneto with the driving vmechanism and supporting devicein vertical section, on a larger scale. Fig.. 4 is a section on the line4-4 of Fig. 3. Fig. 5 is a rear 'view of the bracket.

Similar reference characters referltolike parts throughout the severalviews. A

The magneto shown in the drawings may beof any desired construction; Ihave shown a bed 5, and permanent magnets 6. The armature shaft-7 isformed tapering, with a screw-threaded end 8. A supporting bracket i'sformed with a horizontal portion 9 to receive the bed of the magneto,and a disk 10 having holes 11 for the screws 12, by means of which thisbracket maybe attached to the gear casing 13. Thiscasing 13 incloses thegear on the crank-shaft 14, and the gear 15 on the cam-shaft, asindicated in Fig. 4. Thev gear 16 on the end of .the armature sha-ft isshown meshing with 'this gear .15 .on the cam-shaft, although 1t maymesh with the gear on .the crank-shaft if desired. The gear casing andthe gears Fig. 2 is a section on thedesired manner.

The disk 1o is formed with a hub rzfin Vwhich is an antifriction lining18, to furnish .a bearing for the sleeve 19. This sleeve is formed witha collar20, and its inner end is tapered to t the portion 7 of thearmature shaft. On the outer end of this sleeve 19 1s mounted the gear16, a key 21 supplying the connection between the gear and sleeve. Along nut 22 engages the thread 8 at its inner end. The disk 10 is formedwith a hole 23 and the gear 16 is formed with a hole 24, through whichholes a pin 25, shown in dotted lines in Fig. 3, may extend.

When the magneto has been properly assembled, it will be secured to theplate 6 with the sleeve 19 extending into the bearing 17. The workmanthen places the gear 14 on the sleeve 19 and screws the nut 22 a portionof its distance onto the thread 8, but not suiciently far to lock thesleeve 19 onto the shaft. He then experiments by turning the armatureshaft until he determines the exact position vat which `a spark isgenerated. When this is learned, the armature is stopped at that exactpoint, and the pin 25 then screwed down hard to lock the sleeve 19to thearmature shaft.

When it is desired to mount the magneto4 on any desired multi-cylinderengine, the crank-shaft of the engine is turned so that a predeterminedpiston is at the explosion end` of its stroke. At this position, thecylinder of this selected piston is ready t'o receive a spark, and thegear 15 on the cam shaft is in proper position to engage the gear 16when the holes 23 and 24 register. Any magneto may be taken out ofstock, a pin 25 inserted through the holes 23 and 24 so as to properlyposition the gear 14, the pin removed, and then the disk 10 is securedto the casing 13 by means of-the screws 12, care being taken to avoidturning either of the gears 15 or`16. No further adjustment of themagneto is then necessary. The pin 25 may be replaced by any otherdesired means for insuring the position of the gear 16 being thesame asthat selected by the workman when he determined the exact sparking pointof the armature. j

I claim.

l. The combination with the gear case and driving gear of an internalcombustion engine, of a disk and bracket adapted to be secured thereto,a bearing mounted on said disk, a sleeve revoluble in said bearing andhaving the bore at one end tapered to tit the tapering end of a magnetoshaft, a gear mounted on said sleeve of proper size to mesh with' agearrconneeted to the engine,

. and a nut extending through said sleeve in engagement With thethreaded end of the armature shaft of the magneto, said gear and diskhaving apertures to receive a tool to position the gear relative to thedisk.

2. The combination With an internal combustion engine and a driving gearmounted thereon, of a bracket for supporting a magneto, and comprising avertical and a horizontal plate, said vertical plate formed with abearing, a magneto mounted on said horizontal plate and having a shaftextending through the bearing of thevertical plate, said shaft beingformed tapering and threaded at its outer end, a sleeve mounted in saidbearing and having its bore formed to fit the tapering end of saidshaft, means to secure sald sleeve in position, 'a gear secured to theouter end of said sleeve and means to determine the position of saidgear relative to said armature shaft.

In testimony whereof I. have signed this specification in the presenceof two subscribing Witnesses.

WILLIAM S. LEE. Witnesses:

WILLIAM T. Hnwrr'r, EDWARD N. PAGELSEN.

